Answers_to_Offeror_Questions_(continued)_03_July_2014.pdf

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Advanced Secondary Propulsion Unit
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Answers to Offeror Questions (continued) 03 July 2014

25 Q Please define the interface requirements to operate the GFE ASPU Dry test motor and dyno:

1) Water flow based on a 45 degree Fahrenheit inlet temperature

a) GPM into Dyne

i) Expected heat losses required to dissipate

b) GPM into Motor

i) Expected heat losses required to dissipate

2) Weight of GFE

a) Is there equal floor loading?

3) Foot print of GFE

4) Electrical Service Requirements

a) Voltages

b) Phases

c) Current draw

d) Number of circuits

5) Alternate sources of energy required a). Compressed Air?

A 1. Water flow based on a 45 degree Fahrenheit inlet temperature ‐60 Ton

Chiller @ 120 Gallons per minute (GPM)

a. GPM into Dyne ‐

37 Gallons per minute (GPM)

b. GPM into Motor

Variable Gallons per minute (GPM) based on heat load.

c. GPM into Motor controller

20 Gallons per minute (GPM)

2. Weight of GFE

25,000 lbs

a. Is there equal floor loading? No

3. Foot print of GFE ‐ 20 Foot Conex box

4. Electrical Service Requirements ‐ 220 VAC, 90 AMP & 120 VAC 12.5 amp

5. Alternate sources of energy required a). Compressed Air? 90 PSI air

26 Q Please clarify standard reference:

Paragraph states “MIL‐STD‐454B ; should this reference be MIL‐HDBK‐454 Rev

B as stated in paragraph 2.1.2 (d) of NAVSEA Drawing No 8516387.

If reference MIL‐HDBK‐454 Rev B is the correct standard, then “requirement

55” should be “Guideline 55” in paragraph 5.2.5.12 of NAVSEA Drawing No.

8516387.

If reference MIL‐HDBK‐454 Rev B is the correct standard, should the Document

8516387 take precedence over Item 2 of Forward MIL‐HDBK‐454 Rev B?

Suggest adding reference to paragraph to paragraph 4.6.4 of NAVSEA Drawing

No. 8516387.

A Yes Paragraph states “MIL‐STD‐454B ; should this reference be MIL‐HDBK‐454

Rev B as stated in paragraph 2.1.2 (d) of NAVSEA Drawing No 8516387.

Yes “requirement 55” should be “Guideline 55”

Document 8516387 take precedence over MIL‐HDBK‐454 Rev B

See updated Paragraph below:

5.2.5.12 Enclosure

The drive enclosure shall meet the specification of paragraph 4.6.4 and the requirements of Guideline 55 of MIL‐HDBK‐454 Rev B. Additionally, one enclosed drive shall be tested as specified in MIL‐STD‐108E.

27 Q Please clarify if the GFE item 1 (ASPU Dry test motor) and item 2 (Dyno) are delivered assembled. Will vender be required to assemble item 1 and item 2 to make them functional for test?

Will the Purchaser supply any needed instruction on the use of the GFE if

Vendor decides to use GFE?

A GFE item 1 (ASPU Dry test motor) and item 2 (Dyno) are delivered assembled in one 20 foot Conex box

Yes PSNS will provide a general operational instruction with the GFE item.

File details come from the government source that posted it. Updated .